[ Objective] The paper was to explore the field evaluation system for resistance of sweet potato stem nematode. [ Method ] The resistance of 52.5 acces- sions was evaluated using naturally induced identification metho...[ Objective] The paper was to explore the field evaluation system for resistance of sweet potato stem nematode. [ Method ] The resistance of 52.5 acces- sions was evaluated using naturally induced identification method in diseased field from 2004 to 2009, and the accessions with resistance were selected. [ Result ] The field evaluation system for resistance of sweet p6tato stem nematode was affected by many factors. Non-uniform incidence in fields led to unstable identification results of certain materials. For test problems, some parameters of the existing evaluation system were corrected to reduce the experimental error. E Conclusion The study provided the reference for further improvement of field evaluation system for resistance of sweet potato stem nematode.展开更多
[Objective]The paper was to effectively control stem base rot of sweet potato.[Method]Chemical prevention and control test against stem base rot of sweet potato were conducted for consecutive three years from 2016 to ...[Objective]The paper was to effectively control stem base rot of sweet potato.[Method]Chemical prevention and control test against stem base rot of sweet potato were conducted for consecutive three years from 2016 to 2018.[Result]The use of carbendazim or carbendazim+mancozeb,and carbendazim+embamycin had significant control effect on stem base rot of sweet potato.However,the applied concentration should be higher than the recommended concentration.Especially the concentration of 50%carbendazim WP should be no more than 300 times,and the prevention and control effect of 100 times dilution would be better.[Conclusion]The types and concentrations of prevention and control agents are determined in the test,which will provide certain basis for chemical prevention and control against stem base rot of sweet potato.展开更多
甘薯茎腐病是由达旦提狄克氏菌Dickeya dadantii Samson et al.引起的细菌性甘薯病害,属于我国新发生病害,其蔓延迅速、防治困难,严重影响甘薯的品质和产量,已成为我国南方甘薯产区主要病害之一。文章对该病症状、病原菌分类、致病机制...甘薯茎腐病是由达旦提狄克氏菌Dickeya dadantii Samson et al.引起的细菌性甘薯病害,属于我国新发生病害,其蔓延迅速、防治困难,严重影响甘薯的品质和产量,已成为我国南方甘薯产区主要病害之一。文章对该病症状、病原菌分类、致病机制、全基因组测序概况和防治措施等方面的研究进展进行了综述,并指出了今后的研究方向。展开更多
基金Supported by Agricultural Science and Technology Innovation Funds of Jiangsu Province[CX(12)2030]
文摘[ Objective] The paper was to explore the field evaluation system for resistance of sweet potato stem nematode. [ Method ] The resistance of 52.5 acces- sions was evaluated using naturally induced identification method in diseased field from 2004 to 2009, and the accessions with resistance were selected. [ Result ] The field evaluation system for resistance of sweet p6tato stem nematode was affected by many factors. Non-uniform incidence in fields led to unstable identification results of certain materials. For test problems, some parameters of the existing evaluation system were corrected to reduce the experimental error. E Conclusion The study provided the reference for further improvement of field evaluation system for resistance of sweet potato stem nematode.
基金Major Science and Technology Project for New Variety Breeding of Agriculture(Grain)in Zhejiang Province"Sweet Potato,Yam Germplasm Screening and New Variety Breeding"(2016C 02050-7-3)Key Agricultural Science and Technology Project of Taizhou City"Study on Pathogen Identification,Occurrence Regularity and Prevention and Control Technology of Sweet Potato Stem Base Rot(1701ny12)+2 种基金China Agricultural(Sweet Potato)Industry Research System“Fresh Sweet Potato Improvement"(CARS-10-C-17)Project of Guangzhou Comprehensive Test Station(CARS-10-B-4)2017 Special Project on Agricultural Development and Rural Work in Guangdong Province"Creation and Application of New Sweet Potato Varieties for High Quality and Resistance".
文摘[Objective]The paper was to effectively control stem base rot of sweet potato.[Method]Chemical prevention and control test against stem base rot of sweet potato were conducted for consecutive three years from 2016 to 2018.[Result]The use of carbendazim or carbendazim+mancozeb,and carbendazim+embamycin had significant control effect on stem base rot of sweet potato.However,the applied concentration should be higher than the recommended concentration.Especially the concentration of 50%carbendazim WP should be no more than 300 times,and the prevention and control effect of 100 times dilution would be better.[Conclusion]The types and concentrations of prevention and control agents are determined in the test,which will provide certain basis for chemical prevention and control against stem base rot of sweet potato.
文摘甘薯茎腐病是由达旦提狄克氏菌Dickeya dadantii Samson et al.引起的细菌性甘薯病害,属于我国新发生病害,其蔓延迅速、防治困难,严重影响甘薯的品质和产量,已成为我国南方甘薯产区主要病害之一。文章对该病症状、病原菌分类、致病机制、全基因组测序概况和防治措施等方面的研究进展进行了综述,并指出了今后的研究方向。
